80489340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3217}}^1$

素因数の和:3371

約数の個数: 72

約数和(自身を含む): 245983920

約数和(自身を除く): 165494580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1390, 1668, 2085, 2502, 2780, 3217, 4170, 5004, 6255, 6434, 8340, 9651, 12510, 12868, 16085, 19302, 25020, 28953, 32170, 38604, 48255, 57906, 64340, 96510, 115812, 144765, 193020, 289530, 447163, 579060, 894326, 1341489, 1788652, 2235815, 2682978, 4024467, 4471630, 5365956, 6707445, 8048934, 8943260, 13414890, 16097868, 20122335, 26829780, 40244670, 80489340]

約数ペア:

[(1, 80489340), (2, 40244670), (3, 26829780), (4, 20122335), (5, 16097868), (6, 13414890), (9, 8943260), (10, 8048934), (12, 6707445), (15, 5365956), (18, 4471630), (20, 4024467), (30, 2682978), (36, 2235815), (45, 1788652), (60, 1341489), (90, 894326), (139, 579060), (180, 447163), (278, 289530), (417, 193020), (556, 144765), (695, 115812), (834, 96510), (1251, 64340), (1390, 57906), (1668, 48255), (2085, 38604), (2502, 32170), (2780, 28953), (3217, 25020), (4170, 19302), (5004, 16085), (6255, 12868), (6434, 12510), (8340, 9651)]